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https://issues.apache.org/jira/browse/KAFKA-6433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16317329#comment-16317329
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Randall Hauch commented on KAFKA-6433:
--------------------------------------
KAFKA-5505 will likely be implemented as a change/evolution of Connect's
rebalance subprotocol, and the requirements to solve this issue should be
considered as part of that effort.
> Connect distributed workers should fail if their config is "incompatible"
> with leader's
> ---------------------------------------------------------------------------------------
>
> Key: KAFKA-6433
> URL: https://issues.apache.org/jira/browse/KAFKA-6433
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Affects Versions: 1.0.0
> Reporter: Randall Hauch
> Labels: needs-kip
>
> Currently, each distributed worker config must have the same `worker.id` and
> must use the same internal topics for configs, offsets, and status.
> Additionally, each worker must be configured to have the same connectors,
> SMTs, and converters; confusing error messages will result when some workers
> are able to deploy connector tasks with SMTs while others fail when they are
> missing plugins the other workers do have.
> Ideally, a Connect workers would only be allowed to join the cluster if it
> were "compatible" with the the existing cluster, where "compatible" perhaps
> includes using the same internal topics and having the same set of plugins.
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